# Rebill Cancel IPN When a rebill is cancelled, your IPN refund URL or main IPN URL if IPN refund URL is not set, will geta rebill cancel notification. The following parameters are sent. mainorderid => order ID of the initial/main rebill transaction type => rebillcancel canceltimedate => Cancel time and date in format HH:MM:SS DD-MMM-YYYY canceltimestamp => Machine timestamp of cancellation --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.explodely.com/ipn-for-sellers/rebill-cancel-ipn.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.